While Shadowy Mario (because Shadow Mario is an alter-ego of Bowser Jr. after all) looks good in this picture, I can't hlep but prefer the monochrome purpple colour of the in-game sprite. It just semed to make more sense for the idea of magically siezing someone's identity.

And poor Vivian getting relentlessly picked on by Beldam. At least she didn't insult Vivian's transgendered identity in the English languadge localisation...